2 * Copyright (C) 2012 ROCKCHIP, Inc.
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4 * This software is licensed under the terms of the GNU General Public
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5 * License version 2, as published by the Free Software Foundation, and
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6 * may be copied, distributed, and modified under those terms.
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8 * This program is distributed in the hope that it will be useful,
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9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 * GNU General Public License for more details.
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15 #define pr_fmt(fmt) "rga: " fmt
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16 #include <linux/kernel.h>
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17 #include <linux/init.h>
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18 #include <linux/module.h>
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19 #include <linux/platform_device.h>
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20 #include <linux/sched.h>
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21 #include <linux/mutex.h>
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22 #include <linux/err.h>
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23 #include <linux/clk.h>
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24 #include <asm/delay.h>
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25 #include <linux/dma-mapping.h>
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26 #include <linux/delay.h>
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28 #include <linux/irq.h>
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29 #include <linux/interrupt.h>
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30 #include <mach/io.h>
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31 #include <mach/irqs.h>
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32 #include <linux/fs.h>
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33 #include <asm/uaccess.h>
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34 #include <linux/miscdevice.h>
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35 #include <linux/poll.h>
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36 #include <linux/delay.h>
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37 #include <linux/wait.h>
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38 #include <linux/syscalls.h>
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39 #include <linux/timer.h>
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40 #include <linux/time.h>
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41 #include <asm/cacheflush.h>
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42 #include <linux/slab.h>
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43 #include <linux/fb.h>
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44 #include <linux/wakelock.h>
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47 #include "rga2_reg_info.h"
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48 #include "rga2_mmu_info.h"
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49 #include "RGA2_API.h"
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52 #define RGA2_TEST_FLUSH_TIME 0
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53 #define RGA2_INFO_BUS_ERROR 1
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55 #define RGA2_POWER_OFF_DELAY 4*HZ /* 4s */
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56 #define RGA2_TIMEOUT_DELAY 2*HZ /* 2s */
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58 #define RGA2_MAJOR 255
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60 #define RGA2_RESET_TIMEOUT 1000
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62 /* Driver information */
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63 #define DRIVER_DESC "RGA2 Device Driver"
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64 #define DRIVER_NAME "rga2"
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66 #define RGA2_VERSION "2.000"
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73 rga2_session rga2_session_global;
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75 struct rga2_drvdata_t {
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76 struct miscdevice miscdev;
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81 struct delayed_work power_off_work;
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82 void (*rga_irq_callback)(int rga_retval); //callback function used by aync call
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83 struct wake_lock wake_lock;
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85 struct clk *aclk_rga2;
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86 struct clk *hclk_rga2;
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87 struct clk *pd_rga2;
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91 struct rga2_drvdata_t *rga2_drvdata;
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93 struct rga2_service_info rga2_service;
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94 struct rga2_mmu_buf_t rga2_mmu_buf;
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96 static int rga2_blit_async(rga2_session *session, struct rga2_req *req);
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97 static void rga2_del_running_list(void);
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98 static void rga2_del_running_list_timeout(void);
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99 static void rga2_try_set_reg(void);
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103 #define RGA_DEBUG 0
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105 #define DBG(format, args...) printk(KERN_DEBUG "%s: " format, DRIVER_NAME, ## args)
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106 #define ERR(format, args...) printk(KERN_ERR "%s: " format, DRIVER_NAME, ## args)
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107 #define WARNING(format, args...) printk(KERN_WARN "%s: " format, DRIVER_NAME, ## args)
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108 #define INFO(format, args...) printk(KERN_INFO "%s: " format, DRIVER_NAME, ## args)
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110 #define DBG(format, args...)
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111 #define ERR(format, args...)
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112 #define WARNING(format, args...)
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113 #define INFO(format, args...)
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117 static void print_info(struct rga2_req *req)
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119 printk("render_mode=%d bitblt_mode=%d rotate_mode=%.8x\n",
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120 req->render_mode, req->bitblt_mode, req->rotate_mode);
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121 printk("src : y=%.8x uv=%.8x v=%.8x format=%d aw=%d ah=%d vw=%d vh=%d xoff=%d yoff=%d \n",
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122 req->src.yrgb_addr, req->src.uv_addr, req->src.v_addr, req->src.format,
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123 req->src.act_w, req->src.act_h, req->src.vir_w, req->src.vir_h,
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124 req->src.x_offset, req->src.y_offset);
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125 printk("dst : y=%.8x uv=%.8x v=%.8x format=%d aw=%d ah=%d vw=%d vh=%d xoff=%d yoff=%d \n",
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126 req->dst.yrgb_addr, req->dst.uv_addr, req->dst.v_addr, req->dst.format,
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127 req->dst.act_w, req->dst.act_h, req->dst.vir_w, req->dst.vir_h,
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128 req->dst.x_offset, req->dst.y_offset);
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129 printk("mmu : src=%.2x src1=%.2x dst=%.2x els=%.2x\n",
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130 req->mmu_info.src0_mmu_flag, req->mmu_info.src1_mmu_flag,
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131 req->mmu_info.dst_mmu_flag, req->mmu_info.els_mmu_flag);
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132 printk("alpha : flag %.8x mode0=%.8x mode1=%.8x\n",
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133 req->alpha_rop_flag, req->alpha_mode_0, req->alpha_mode_1);
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138 static inline void rga2_write(u32 b, u32 r)
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140 __raw_writel(b, rga2_drvdata->rga_base + r);
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143 static inline u32 rga2_read(u32 r)
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145 return __raw_readl(rga2_drvdata->rga_base + r);
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148 static void rga2_soft_reset(void)
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153 rga2_write(1, RGA2_SYS_CTRL); //RGA_SYS_CTRL
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155 for(i = 0; i < RGA2_RESET_TIMEOUT; i++)
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157 reg = rga2_read(RGA2_SYS_CTRL) & 1; //RGA_SYS_CTRL
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165 if(i == RGA2_RESET_TIMEOUT)
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166 ERR("soft reset timeout.\n");
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169 static void rga2_dump(void)
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172 struct rga2_reg *reg, *reg_tmp;
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173 rga2_session *session, *session_tmp;
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175 running = atomic_read(&rga2_service.total_running);
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176 printk("rga total_running %d\n", running);
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180 /* Dump waiting list info */
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181 if (!list_empty(&rga_service.waiting))
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185 next = &rga_service.waiting;
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187 printk("rga_service dump waiting list\n");
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191 reg = list_entry(next->next, struct rga_reg, status_link);
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192 running = atomic_read(®->session->task_running);
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193 num_done = atomic_read(®->session->num_done);
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194 printk("rga session pid %d, done %d, running %d\n", reg->session->pid, num_done, running);
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197 while(!list_empty(next));
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200 /* Dump running list info */
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201 if (!list_empty(&rga_service.running))
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203 printk("rga_service dump running list\n");
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207 next = &rga_service.running;
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210 reg = list_entry(next->next, struct rga_reg, status_link);
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211 running = atomic_read(®->session->task_running);
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212 num_done = atomic_read(®->session->num_done);
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213 printk("rga session pid %d, done %d, running %d:\n", reg->session->pid, num_done, running);
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216 while(!list_empty(next));
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220 list_for_each_entry_safe(session, session_tmp, &rga2_service.session, list_session)
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222 printk("session pid %d:\n", session->pid);
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223 running = atomic_read(&session->task_running);
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224 printk("task_running %d\n", running);
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225 list_for_each_entry_safe(reg, reg_tmp, &session->waiting, session_link)
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227 printk("waiting register set 0x%.8x\n", (unsigned int)reg);
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229 list_for_each_entry_safe(reg, reg_tmp, &session->running, session_link)
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231 printk("running register set 0x%.8x\n", (unsigned int)reg);
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236 static inline void rga2_queue_power_off_work(void)
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238 queue_delayed_work(system_nrt_wq, &rga2_drvdata->power_off_work, RGA2_POWER_OFF_DELAY);
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241 /* Caller must hold rga_service.lock */
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242 static void rga2_power_on(void)
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244 static ktime_t last;
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245 ktime_t now = ktime_get();
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247 if (ktime_to_ns(ktime_sub(now, last)) > NSEC_PER_SEC) {
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248 cancel_delayed_work_sync(&rga2_drvdata->power_off_work);
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249 rga2_queue_power_off_work();
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252 if (rga2_service.enable)
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255 //clk_enable(rga2_drvdata->rga2);
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256 clk_prepare_enable(rga2_drvdata->aclk_rga2);
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257 clk_prepare_enable(rga2_drvdata->hclk_rga2);
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258 //clk_enable(rga2_drvdata->pd_rga2);
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259 wake_lock(&rga2_drvdata->wake_lock);
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260 rga2_service.enable = true;
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263 /* Caller must hold rga_service.lock */
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264 static void rga2_power_off(void)
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268 if (!rga2_service.enable) {
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272 total_running = atomic_read(&rga2_service.total_running);
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273 if (total_running) {
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274 pr_err("power off when %d task running!!\n", total_running);
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276 pr_err("delay 50 ms for running task\n");
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280 //clk_disable(rga2_drvdata->pd_rga2);
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281 //clk_disable(rga2_drvdata->rga2);
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282 clk_disable_unprepare(rga2_drvdata->aclk_rga2);
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283 clk_disable_unprepare(rga2_drvdata->hclk_rga2);
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284 wake_unlock(&rga2_drvdata->wake_lock);
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285 rga2_service.enable = false;
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288 static void rga2_power_off_work(struct work_struct *work)
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290 if (mutex_trylock(&rga2_service.lock)) {
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292 mutex_unlock(&rga2_service.lock);
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294 /* Come back later if the device is busy... */
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295 rga2_queue_power_off_work();
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299 static int rga2_flush(rga2_session *session, unsigned long arg)
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304 #if RGA2_TEST_FLUSH_TIME
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307 start = ktime_get();
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310 ret_timeout = wait_event_timeout(session->wait, atomic_read(&session->done), RGA2_TIMEOUT_DELAY);
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312 if (unlikely(ret_timeout < 0)) {
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313 //pr_err("flush pid %d wait task ret %d\n", session->pid, ret);
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314 mutex_lock(&rga2_service.lock);
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315 rga2_del_running_list();
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316 mutex_unlock(&rga2_service.lock);
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318 } else if (0 == ret_timeout) {
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319 //pr_err("flush pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
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320 //printk("bus = %.8x\n", rga_read(RGA_INT));
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321 mutex_lock(&rga2_service.lock);
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322 rga2_del_running_list_timeout();
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323 rga2_try_set_reg();
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324 mutex_unlock(&rga2_service.lock);
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328 #if RGA2_TEST_FLUSH_TIME
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330 end = ktime_sub(end, start);
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331 printk("one flush wait time %d\n", (int)ktime_to_us(end));
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338 static int rga2_get_result(rga2_session *session, unsigned long arg)
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340 //printk("rga_get_result %d\n",drvdata->rga_result);
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346 num_done = atomic_read(&session->num_done);
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348 if (unlikely(copy_to_user((void __user *)arg, &num_done, sizeof(int)))) {
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349 printk("copy_to_user failed\n");
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356 static int rga2_check_param(const struct rga2_req *req)
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358 /*RGA2 can support up to 8192*8192 resolution in RGB format,but we limit the image size to 8191*8191 here*/
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359 //check src width and height
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361 if(!((req->render_mode == color_fill_mode)))
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363 if (unlikely((req->src.act_w <= 0) || (req->src.act_w > 8191) || (req->src.act_h <= 0) || (req->src.act_h > 8191)))
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365 printk("invalid source resolution act_w = %d, act_h = %d\n", req->src.act_w, req->src.act_h);
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370 if(!((req->render_mode == color_fill_mode)))
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372 if (unlikely((req->src.vir_w <= 0) || (req->src.vir_w > 8191) || (req->src.vir_h <= 0) || (req->src.vir_h > 8191)))
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374 printk("invalid source resolution vir_w = %d, vir_h = %d\n", req->src.vir_w, req->src.vir_h);
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379 //check dst width and height
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380 if (unlikely((req->dst.act_w <= 0) || (req->dst.act_w > 4096) || (req->dst.act_h <= 0) || (req->dst.act_h > 4096)))
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382 printk("invalid destination resolution act_w = %d, act_h = %d\n", req->dst.act_w, req->dst.act_h);
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386 if (unlikely((req->dst.vir_w <= 0) || (req->dst.vir_w > 4096) || (req->dst.vir_h <= 0) || (req->dst.vir_h > 4096)))
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388 printk("invalid destination resolution vir_w = %d, vir_h = %d\n", req->dst.vir_w, req->dst.vir_h);
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393 if(unlikely(req->src.vir_w < req->src.act_w)){
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394 printk("invalid src_vir_w act_w = %d, vir_w = %d\n", req->src.act_w, req->src.vir_w);
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399 if(unlikely(req->dst.vir_w < req->dst.act_w)){
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400 if(req->rotate_mode != 1)
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402 printk("invalid dst_vir_w act_h = %d, vir_h = %d\n", req->dst.act_w, req->dst.vir_w);
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410 static void rga2_copy_reg(struct rga2_reg *reg, uint32_t offset)
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416 if(atomic_read(®->session->task_running) != 0)
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418 printk(KERN_ERR "task_running is no zero\n");
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421 atomic_add(1, &rga2_service.cmd_num);
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422 atomic_add(1, ®->session->task_running);
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424 cmd_buf = (uint32_t *)rga2_service.cmd_buff + offset*32;
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425 reg_p = (uint32_t *)reg->cmd_reg;
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427 for(i=0; i<32; i++)
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429 cmd_buf[i] = reg_p[i];
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436 static struct rga2_reg * rga2_reg_init(rga2_session *session, struct rga2_req *req)
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439 struct rga2_reg *reg = kzalloc(sizeof(struct rga2_reg), GFP_KERNEL);
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441 pr_err("kmalloc fail in rga_reg_init\n");
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445 reg->session = session;
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446 INIT_LIST_HEAD(®->session_link);
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447 INIT_LIST_HEAD(®->status_link);
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449 reg->MMU_base = NULL;
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451 if ((req->mmu_info.src0_mmu_flag & 1) || (req->mmu_info.src1_mmu_flag & 1)
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452 || (req->mmu_info.dst_mmu_flag & 1) || (req->mmu_info.els_mmu_flag & 1))
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454 ret = rga2_set_mmu_info(reg, req);
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457 printk("%s, [%d] set mmu info error \n", __FUNCTION__, __LINE__);
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466 if(RGA2_gen_reg_info((uint8_t *)reg->cmd_reg, req) == -1)
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468 printk("gen reg info error\n");
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476 mutex_lock(&rga2_service.lock);
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477 list_add_tail(®->status_link, &rga2_service.waiting);
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478 list_add_tail(®->session_link, &session->waiting);
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479 mutex_unlock(&rga2_service.lock);
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485 /* Caller must hold rga_service.lock */
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486 static void rga2_reg_deinit(struct rga2_reg *reg)
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488 list_del_init(®->session_link);
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489 list_del_init(®->status_link);
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493 /* Caller must hold rga_service.lock */
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494 static void rga2_reg_from_wait_to_run(struct rga2_reg *reg)
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496 list_del_init(®->status_link);
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497 list_add_tail(®->status_link, &rga2_service.running);
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499 list_del_init(®->session_link);
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500 list_add_tail(®->session_link, ®->session->running);
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503 /* Caller must hold rga_service.lock */
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504 static void rga2_service_session_clear(rga2_session *session)
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506 struct rga2_reg *reg, *n;
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508 list_for_each_entry_safe(reg, n, &session->waiting, session_link)
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510 rga2_reg_deinit(reg);
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513 list_for_each_entry_safe(reg, n, &session->running, session_link)
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515 rga2_reg_deinit(reg);
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519 /* Caller must hold rga_service.lock */
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520 static void rga2_try_set_reg(void)
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522 struct rga2_reg *reg ;
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524 if (list_empty(&rga2_service.running))
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526 if (!list_empty(&rga2_service.waiting))
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529 reg = list_entry(rga2_service.waiting.next, struct rga2_reg, status_link);
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534 rga2_copy_reg(reg, 0);
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535 rga2_reg_from_wait_to_run(reg);
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537 dmac_flush_range(&rga2_service.cmd_buff[0], &rga2_service.cmd_buff[32]);
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538 outer_flush_range(virt_to_phys(&rga2_service.cmd_buff[0]),virt_to_phys(&rga2_service.cmd_buff[32]));
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540 #if defined(CONFIG_ARCH_RK30)
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544 rga2_write(0x0, RGA2_SYS_CTRL);
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545 //rga2_write(0, RGA_MMU_CTRL);
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548 rga2_write(virt_to_phys(rga2_service.cmd_buff), RGA2_CMD_BASE);
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553 //printk(KERN_DEBUG "cmd_addr = %.8x\n", rga_read(RGA_CMD_ADDR));
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555 p = rga2_service.cmd_buff;
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556 printk("CMD_REG\n");
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557 for (i=0; i<8; i++)
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558 printk("%.8x %.8x %.8x %.8x\n", p[0 + i*4], p[1+i*4], p[2 + i*4], p[3 + i*4]);
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563 rga2_write((0x1<<1)|(0x1<<2)|(0x1<<5)|(0x1<<6), RGA2_SYS_CTRL);
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565 /* All CMD finish int */
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566 rga2_write(rga2_read(RGA2_INT)|(0x1<<10)|(0x1<<8), RGA2_INT);
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569 rga_start = ktime_get();
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573 atomic_set(®->session->done, 0);
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574 rga2_write(0x1, RGA2_CMD_CTRL);
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579 printk("CMD_READ_BACK_REG\n");
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580 for (i=0; i<8; i++)
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581 printk("%.8x %.8x %.8x %.8x\n", rga2_read(0x100 + i*16 + 0),
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582 rga2_read(0x100 + i*16 + 4), rga2_read(0x100 + i*16 + 8), rga2_read(0x100 + i*16 + 12));
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592 /* Caller must hold rga_service.lock */
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593 static void rga2_del_running_list(void)
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595 struct rga2_reg *reg;
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597 while(!list_empty(&rga2_service.running))
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599 reg = list_entry(rga2_service.running.next, struct rga2_reg, status_link);
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601 if(reg->MMU_len != 0)
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603 if (rga2_mmu_buf.back + reg->MMU_len > 2*rga2_mmu_buf.size)
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604 rga2_mmu_buf.back = reg->MMU_len + rga2_mmu_buf.size;
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606 rga2_mmu_buf.back += reg->MMU_len;
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608 atomic_sub(1, ®->session->task_running);
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609 atomic_sub(1, &rga2_service.total_running);
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611 if(list_empty(®->session->waiting))
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613 atomic_set(®->session->done, 1);
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614 wake_up(®->session->wait);
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617 rga2_reg_deinit(reg);
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621 /* Caller must hold rga_service.lock */
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622 static void rga2_del_running_list_timeout(void)
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624 struct rga2_reg *reg;
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626 while(!list_empty(&rga2_service.running))
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628 reg = list_entry(rga2_service.running.next, struct rga2_reg, status_link);
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630 if(reg->MMU_base != NULL)
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632 kfree(reg->MMU_base);
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635 atomic_sub(1, ®->session->task_running);
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636 atomic_sub(1, &rga2_service.total_running);
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638 //printk("RGA soft reset for timeout process\n");
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643 printk("RGA_INT is %.8x\n", rga_read(RGA_INT));
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644 printk("reg->session->task_running = %d\n", atomic_read(®->session->task_running));
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645 printk("rga_service.total_running = %d\n", atomic_read(&rga_service.total_running));
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647 print_info(®->req);
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652 for (i=0; i<7; i++)
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653 printk("%.8x %.8x %.8x %.8x\n", p[0 + i*4], p[1+i*4], p[2 + i*4], p[3 + i*4]);
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658 if(list_empty(®->session->waiting))
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660 atomic_set(®->session->done, 1);
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661 wake_up(®->session->wait);
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664 rga2_reg_deinit(reg);
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669 static void rga2_mem_addr_sel(struct rga2_req *req)
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674 static int rga2_blit(rga2_session *session, struct rga2_req *req)
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678 struct rga2_reg *reg;
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682 /* check value if legal */
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683 ret = rga2_check_param(req);
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684 if(ret == -EINVAL) {
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685 printk("req argument is inval\n");
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689 reg = rga2_reg_init(session, req);
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695 mutex_lock(&rga2_service.lock);
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696 atomic_add(num, &rga2_service.total_running);
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697 rga2_try_set_reg();
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698 mutex_unlock(&rga2_service.lock);
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707 static int rga2_blit_async(rga2_session *session, struct rga2_req *req)
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712 //printk("*** rga_blit_async proc ***\n");
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713 if (req->src.format >= 0x10) {
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716 printk("*** rga_blit_async proc ***\n");
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721 atomic_set(&session->done, 0);
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722 ret = rga2_blit(session, req);
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727 static int rga2_blit_sync(rga2_session *session, struct rga2_req *req)
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730 int ret_timeout = 0;
\r
733 if (req->src.format >= 0x10) {
\r
736 printk("*** rga2_blit_sync proc ***\n");
\r
742 atomic_set(&session->done, 0);
\r
744 ret = rga2_blit(session, req);
\r
750 ret_timeout = wait_event_timeout(session->wait, atomic_read(&session->done), RGA2_TIMEOUT_DELAY);
\r
752 if (unlikely(ret_timeout< 0))
\r
754 //pr_err("sync pid %d wait task ret %d\n", session->pid, ret_timeout);
\r
755 mutex_lock(&rga2_service.lock);
\r
756 rga2_del_running_list();
\r
757 mutex_unlock(&rga2_service.lock);
\r
760 else if (0 == ret_timeout)
\r
762 //pr_err("sync pid %d wait %d task done timeout\n", session->pid, atomic_read(&session->task_running));
\r
763 mutex_lock(&rga2_service.lock);
\r
764 rga2_del_running_list_timeout();
\r
765 rga2_try_set_reg();
\r
766 mutex_unlock(&rga2_service.lock);
\r
771 rga_end = ktime_get();
\r
772 rga_end = ktime_sub(rga_end, rga_start);
\r
773 printk("sync one cmd end time %d\n", (int)ktime_to_us(rga_end));
\r
780 static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
\r
782 struct rga2_req req;
\r
783 struct rga_req req_rga;
\r
785 rga2_session *session;
\r
787 mutex_lock(&rga2_service.mutex);
\r
789 session = (rga2_session *)file->private_data;
\r
791 if (NULL == session)
\r
793 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
\r
794 mutex_unlock(&rga2_service.mutex);
\r
798 memset(&req, 0x0, sizeof(req));
\r
802 case RGA_BLIT_SYNC:
\r
804 if (unlikely(copy_from_user(&req_rga, (struct rga_req*)arg, sizeof(struct rga_req))))
\r
806 ERR("copy_from_user failed\n");
\r
810 RGA_MSG_2_RGA2_MSG(&req_rga, &req);
\r
812 ret = rga2_blit_sync(session, &req);
\r
814 case RGA_BLIT_ASYNC:
\r
815 if (unlikely(copy_from_user(&req_rga, (struct rga_req*)arg, sizeof(struct rga_req))))
\r
817 ERR("copy_from_user failed\n");
\r
822 RGA_MSG_2_RGA2_MSG(&req_rga, &req);
\r
824 if((atomic_read(&rga2_service.total_running) > 8))
\r
826 ret = rga2_blit_sync(session, &req);
\r
830 ret = rga2_blit_async(session, &req);
\r
833 case RGA2_BLIT_SYNC:
\r
834 if (unlikely(copy_from_user(&req, (struct rga2_req*)arg, sizeof(struct rga2_req))))
\r
836 ERR("copy_from_user failed\n");
\r
840 ret = rga2_blit_sync(session, &req);
\r
842 case RGA2_BLIT_ASYNC:
\r
843 if (unlikely(copy_from_user(&req, (struct rga2_req*)arg, sizeof(struct rga2_req))))
\r
845 ERR("copy_from_user failed\n");
\r
850 if((atomic_read(&rga2_service.total_running) > 16))
\r
852 ret = rga2_blit_sync(session, &req);
\r
856 ret = rga2_blit_async(session, &req);
\r
861 ret = rga2_flush(session, arg);
\r
863 case RGA_GET_RESULT:
\r
864 case RGA2_GET_RESULT:
\r
865 ret = rga2_get_result(session, arg);
\r
867 case RGA_GET_VERSION:
\r
868 case RGA2_GET_VERSION:
\r
869 ret = copy_to_user((void *)arg, RGA2_VERSION, sizeof(RGA2_VERSION));
\r
873 ERR("unknown ioctl cmd!\n");
\r
878 mutex_unlock(&rga2_service.mutex);
\r
884 long rga_ioctl_kernel(struct rga_req *req)
\r
887 rga2_session *session;
\r
888 struct rga2_req req_rga2;
\r
890 mutex_lock(&rga2_service.mutex);
\r
892 session = &rga2_session_global;
\r
894 if (NULL == session)
\r
896 printk("%s [%d] rga thread session is null\n",__FUNCTION__,__LINE__);
\r
897 mutex_unlock(&rga2_service.mutex);
\r
901 RGA_MSG_2_RGA2_MSG(req, &req_rga2);
\r
902 ret = rga2_blit_sync(session, &req_rga2);
\r
904 mutex_unlock(&rga2_service.mutex);
\r
910 static int rga2_open(struct inode *inode, struct file *file)
\r
912 rga2_session *session = kzalloc(sizeof(rga2_session), GFP_KERNEL);
\r
913 if (NULL == session) {
\r
914 pr_err("unable to allocate memory for rga_session.");
\r
918 session->pid = current->pid;
\r
919 //printk(KERN_DEBUG "+");
\r
921 INIT_LIST_HEAD(&session->waiting);
\r
922 INIT_LIST_HEAD(&session->running);
\r
923 INIT_LIST_HEAD(&session->list_session);
\r
924 init_waitqueue_head(&session->wait);
\r
925 mutex_lock(&rga2_service.lock);
\r
926 list_add_tail(&session->list_session, &rga2_service.session);
\r
927 mutex_unlock(&rga2_service.lock);
\r
928 atomic_set(&session->task_running, 0);
\r
929 atomic_set(&session->num_done, 0);
\r
931 file->private_data = (void *)session;
\r
933 //DBG("*** rga dev opened by pid %d *** \n", session->pid);
\r
934 return nonseekable_open(inode, file);
\r
938 static int rga2_release(struct inode *inode, struct file *file)
\r
941 rga2_session *session = (rga2_session *)file->private_data;
\r
942 if (NULL == session)
\r
944 //printk(KERN_DEBUG "-");
\r
945 task_running = atomic_read(&session->task_running);
\r
949 pr_err("rga2_service session %d still has %d task running when closing\n", session->pid, task_running);
\r
954 wake_up(&session->wait);
\r
955 mutex_lock(&rga2_service.lock);
\r
956 list_del(&session->list_session);
\r
957 rga2_service_session_clear(session);
\r
959 mutex_unlock(&rga2_service.lock);
\r
961 //DBG("*** rga dev close ***\n");
\r
965 static irqreturn_t rga2_irq_thread(int irq, void *dev_id)
\r
967 mutex_lock(&rga2_service.lock);
\r
968 if (rga2_service.enable) {
\r
969 rga2_del_running_list();
\r
970 rga2_try_set_reg();
\r
972 mutex_unlock(&rga2_service.lock);
\r
974 return IRQ_HANDLED;
\r
977 static irqreturn_t rga2_irq(int irq, void *dev_id)
\r
980 rga2_write(rga2_read(RGA2_INT) | (0x1<<4) | (0x1<<5) | (0x1<<6) | (0x1<<7), RGA2_INT);
\r
982 return IRQ_WAKE_THREAD;
\r
985 struct file_operations rga2_fops = {
\r
986 .owner = THIS_MODULE,
\r
988 .release = rga2_release,
\r
989 .unlocked_ioctl = rga_ioctl,
\r
992 static struct miscdevice rga2_dev ={
\r
993 .minor = RGA2_MAJOR,
\r
995 .fops = &rga2_fops,
\r
998 static const struct of_device_id rockchip_rga_of_match[] = {
\r
999 { .compatible = "rockchip,rga", .data = NULL, },
\r
1003 static int __devinit rga2_drv_probe(struct platform_device *pdev)
\r
1005 struct rga2_drvdata_t *data;
\r
1006 struct resource *res;
\r
1007 struct device_node *np = pdev->dev.of_node;
\r
1010 mutex_init(&rga2_service.lock);
\r
1011 mutex_init(&rga2_service.mutex);
\r
1012 atomic_set(&rga2_service.total_running, 0);
\r
1013 atomic_set(&rga2_service.src_format_swt, 0);
\r
1014 rga2_service.last_prc_src_format = 1; /* default is yuv first*/
\r
1015 rga2_service.enable = false;
\r
1017 data = devm_kzalloc(&pdev->dev, sizeof(struct rga2_drvdata_t), GFP_KERNEL);
\r
1020 ERR("failed to allocate driver data.\n");
\r
1024 INIT_DELAYED_WORK(&data->power_off_work, rga2_power_off_work);
\r
1025 wake_lock_init(&data->wake_lock, WAKE_LOCK_SUSPEND, "rga");
\r
1027 //data->pd_rga2 = clk_get(NULL, "pd_rga");
\r
1028 //data->rga2 = clk_get(NULL, "rga");
\r
1029 data->aclk_rga = devm_clk_get(&pdev->dev, "aclk_rga");
\r
1030 data->hclk_rga = devm_clk_get(&pdev->dev, "hclk_rga");
\r
1032 /* map the registers */
\r
1033 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
\r
1034 data->rga_base = devm_ioremap_resource(&pdev->dev, res);
\r
1035 if (!data->rga_base) {
\r
1036 ERR("rga ioremap failed\n");
\r
1042 data->irq = platform_get_irq(pdev, 0);
\r
1043 if (data->irq <= 0) {
\r
1044 ERR("failed to get rga irq resource (%d).\n", data->irq);
\r
1049 /* request the IRQ */
\r
1050 ret = devm_request_threaded_irq(&pdev->dev, data->irq, rga2_irq, rga2_irq_thread, 0, "rga", pdev);
\r
1053 ERR("rga request_irq failed (%d).\n", ret);
\r
1057 platform_set_drvdata(pdev, data);
\r
1058 rga2_drvdata = data;
\r
1060 ret = misc_register(&rga2_dev);
\r
1063 ERR("cannot register miscdev (%d)\n", ret);
\r
1064 goto err_misc_register;
\r
1067 pr_info("Driver loaded succesfully\n");
\r
1071 err_misc_register:
\r
1072 free_irq(data->irq, pdev);
\r
1074 iounmap(data->rga_base);
\r
1076 wake_lock_destroy(&data->wake_lock);
\r
1082 static int rga2_drv_remove(struct platform_device *pdev)
\r
1084 struct rga2_drvdata_t *data = platform_get_drvdata(pdev);
\r
1085 DBG("%s [%d]\n",__FUNCTION__,__LINE__);
\r
1087 wake_lock_destroy(&data->wake_lock);
\r
1088 misc_deregister(&(data->miscdev));
\r
1089 free_irq(data->irq, &data->miscdev);
\r
1090 iounmap((void __iomem *)(data->rga_base));
\r
1092 //clk_put(data->pd_rga2);
\r
1093 //clk_put(data->rga2);
\r
1094 devm_clk_put(&pdev->dev, data->aclk_rga2);
\r
1095 devm_clk_put(&pdev->dev, data->hclk_rga2);
\r
1101 static struct platform_driver rga2_driver = {
\r
1102 .probe = rga2_drv_probe,
\r
1103 .remove = __devexit_p(rga2_drv_remove),
\r
1105 .owner = THIS_MODULE,
\r
1111 void rga2_test_0(void);
\r
1113 static int __init rga2_init(void)
\r
1118 /* malloc pre scale mid buf mmu table */
\r
1119 buf_p = kmalloc(1024*256, GFP_KERNEL);
\r
1120 rga2_mmu_buf.buf_virtual = buf_p;
\r
1121 rga2_mmu_buf.buf = (uint32_t *)virt_to_phys((void *)((uint32_t)buf_p));
\r
1122 rga2_mmu_buf.front = 0;
\r
1123 rga2_mmu_buf.back = 64*1024;
\r
1124 rga2_mmu_buf.size = 64*1024;
\r
1126 if ((ret = platform_driver_register(&rga2_driver)) != 0)
\r
1128 printk(KERN_ERR "Platform device register failed (%d).\n", ret);
\r
1133 rga2_session_global.pid = 0x0000ffff;
\r
1134 INIT_LIST_HEAD(&rga2_session_global.waiting);
\r
1135 INIT_LIST_HEAD(&rga2_session_global.running);
\r
1136 INIT_LIST_HEAD(&rga2_session_global.list_session);
\r
1138 INIT_LIST_HEAD(&rga2_service.waiting);
\r
1139 INIT_LIST_HEAD(&rga2_service.running);
\r
1140 INIT_LIST_HEAD(&rga2_service.done);
\r
1141 INIT_LIST_HEAD(&rga2_service.session);
\r
1142 init_waitqueue_head(&rga2_session_global.wait);
\r
1143 //mutex_lock(&rga_service.lock);
\r
1144 list_add_tail(&rga2_session_global.list_session, &rga2_service.session);
\r
1145 //mutex_unlock(&rga_service.lock);
\r
1146 atomic_set(&rga2_session_global.task_running, 0);
\r
1147 atomic_set(&rga2_session_global.num_done, 0);
\r
1150 #if RGA2_TEST_CASE
\r
1154 INFO("Module initialized.\n");
\r
1159 static void __exit rga2_exit(void)
\r
1163 if (rga2_mmu_buf.buf_virtual)
\r
1164 kfree(rga2_mmu_buf.buf_virtual);
\r
1166 platform_driver_unregister(&rga2_driver);
\r
1170 #if RGA2_TEST_CASE
\r
1172 extern struct fb_info * rk_get_fb(int fb_id);
\r
1173 EXPORT_SYMBOL(rk_get_fb);
\r
1175 extern void rk_direct_fb_show(struct fb_info * fbi);
\r
1176 EXPORT_SYMBOL(rk_direct_fb_show);
\r
1178 //unsigned int src_buf[1920*1080];
\r
1179 //unsigned int dst_buf[1920*1080];
\r
1180 //unsigned int tmp_buf[1920*1080 * 2];
\r
1182 void rga2_test_0(void)
\r
1184 struct rga2_req req;
\r
1185 rga2_session session;
\r
1186 unsigned int *src, *dst;
\r
1190 uint32_t *dst0, *dst1, *dst2;
\r
1192 struct fb_info *fb;
\r
1194 session.pid = current->pid;
\r
1195 INIT_LIST_HEAD(&session.waiting);
\r
1196 INIT_LIST_HEAD(&session.running);
\r
1197 INIT_LIST_HEAD(&session.list_session);
\r
1198 init_waitqueue_head(&session.wait);
\r
1199 /* no need to protect */
\r
1200 list_add_tail(&session.list_session, &rga2_service.session);
\r
1201 atomic_set(&session.task_running, 0);
\r
1202 atomic_set(&session.num_done, 0);
\r
1203 //file->private_data = (void *)session;
\r
1205 fb = rk_get_fb(0);
\r
1207 memset(&req, 0, sizeof(struct rga2_req));
\r
1208 src = kmalloc(800*480*4, GFP_KERNEL);
\r
1209 dst = kmalloc(800*480*4, GFP_KERNEL);
\r
1211 memset(src, 0x80, 800*480*4);
\r
1213 dmac_flush_range(&src, &src[800*480*4]);
\r
1214 outer_flush_range(virt_to_phys(&src),virt_to_phys(&src[800*480*4]));
\r
1218 memset(src_buf, 0x80, 800*480*4);
\r
1219 memset(dst_buf, 0xcc, 800*480*4);
\r
1221 dmac_flush_range(&dst_buf[0], &dst_buf[800*480]);
\r
1222 outer_flush_range(virt_to_phys(&dst_buf[0]),virt_to_phys(&dst_buf[800*480]));
\r
1229 printk("\n********************************\n");
\r
1230 printk("************ RGA2_TEST ************\n");
\r
1231 printk("********************************\n\n");
\r
1233 req.src.act_w = 320;
\r
1234 req.src.act_h = 240;
\r
1236 req.src.vir_w = 320;
\r
1237 req.src.vir_h = 240;
\r
1238 req.src.yrgb_addr = (uint32_t)virt_to_phys(src);
\r
1239 req.src.uv_addr = (uint32_t)(req.src.yrgb_addr + 800*480);
\r
1240 req.src.v_addr = (uint32_t)virt_to_phys(src);
\r
1241 req.src.format = RGA2_FORMAT_RGBA_8888;
\r
1243 req.dst.act_w = 320;
\r
1244 req.dst.act_h = 240;
\r
1245 req.dst.x_offset = 0;
\r
1246 req.dst.y_offset = 0;
\r
1248 req.dst.vir_w = 320;
\r
1249 req.dst.vir_h = 240;
\r
1251 req.dst.yrgb_addr = ((uint32_t)virt_to_phys(dst));
\r
1252 req.dst.format = RGA2_FORMAT_RGBA_8888;
\r
1256 //req.render_mode = color_fill_mode;
\r
1257 //req.fg_color = 0x80ffffff;
\r
1259 req.rotate_mode = 1;
\r
1260 req.scale_bicu_mode = 2;
\r
1262 //req.alpha_rop_flag = 0;
\r
1263 //req.alpha_rop_mode = 0x19;
\r
1264 //req.PD_mode = 3;
\r
1266 req.rotate_mode = 0;
\r
1268 //req.mmu_info.mmu_flag = 0x21;
\r
1269 //req.mmu_info.mmu_en = 1;
\r
1271 //printk("src = %.8x\n", req.src.yrgb_addr);
\r
1272 //printk("src = %.8x\n", req.src.uv_addr);
\r
1273 //printk("dst = %.8x\n", req.dst.yrgb_addr);
\r
1275 rga2_blit_sync(&session, &req);
\r
1278 fb->var.bits_per_pixel = 32;
\r
1280 fb->var.xres = 1280;
\r
1281 fb->var.yres = 800;
\r
1283 fb->var.red.length = 8;
\r
1284 fb->var.red.offset = 0;
\r
1285 fb->var.red.msb_right = 0;
\r
1287 fb->var.green.length = 8;
\r
1288 fb->var.green.offset = 8;
\r
1289 fb->var.green.msb_right = 0;
\r
1291 fb->var.blue.length = 8;
\r
1293 fb->var.blue.offset = 16;
\r
1294 fb->var.blue.msb_right = 0;
\r
1296 fb->var.transp.length = 8;
\r
1297 fb->var.transp.offset = 24;
\r
1298 fb->var.transp.msb_right = 0;
\r
1300 fb->var.nonstd &= (~0xff);
\r
1301 fb->var.nonstd |= 1;
\r
1303 fb->fix.smem_start = virt_to_phys(dst);
\r
1305 rk_direct_fb_show(fb);
\r
1315 module_init(rga2_init);
\r
1316 module_exit(rga2_exit);
\r
1318 /* Module information */
\r
1319 MODULE_AUTHOR("zsq@rock-chips.com");
\r
1320 MODULE_DESCRIPTION("Driver for rga device");
\r
1321 MODULE_LICENSE("GPL");
\r